Granted Patent
Utility
US 6,689,912 · App. 10/304,871
Methods for preparing O-desmethylvenlafaxine
Inventor:
Beat Weber
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Nov 26, 2002
Inventor
Beat Weber
Assignee (at issue)
Wyeth, LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.